DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P0127 | IAT SENSOR-B1 (Intake air temperature too high) | Rationally incorrect voltage from the sensor is sent to ECM, compared with the voltage signal from engine coolant temperature sensor. |
POSSIBLE CAUSE
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
TESTING CONDITION: This test may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
NOTE: Perform the following steps before engine coolant temperature is above 96°C (205°F).
CAUTION: Always drive vehicle at a safe speed.
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected? YES >> Proceed to EC-221, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
Is the inspection result normal? YES >> GO TO 2.
NO >> Replace mass air flow sensor (with intake air temperature sensor). Refer to EM-24, "Exploded View".
2.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK INTAKE AIR TEMPERATURE SENSOR
Monitor item | Condition | Value (Approx.) | |
INT/A TEMP SEN | Temperature [°C (°F)] | 25 (77) | 1.9 - 2.1 (V) |
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace mass air flow sensor (with intake air temperature sensor). Refer to EM-24, "Exploded View".
Bluetooth connection
Functional requirements
Compatible device with Bluetooth interface.
Compatible devices.
The vehicle key or BMW display key is in the
vehicle.
The device is ready for operation.
Bluetooth is switched on in the vehicle and
on the device.
The pairing readiness is displayed on the
Control Disp ...
Cargo cover
Safety information
Warning
Loose objects or devices with a cable connection
to the vehicle, for instance mobile phones,
can be thrown about the car's interior while
driving, for instance in the event of an accident,
braking or evasive maneuver. There is a risk of
injury. Secure loose objects or devi ...
Preparation
Special Service Tool
The actual shapes of tools may differ from those illustrated here.
Tool number
(TechMate No.)
Tool name
Description
—
(J-46534)
Trim Tool Set
Removing trim components
Commercial Service Tool
(TechMate No.)
Tool n ...